Solvent-induced microphase separation membranes of block poly (aryl ether sulfone) copolymer with high selectivity of O2/N2 separation

The p-diethanolaminomethylcalix[4]arene-incorporated polyacrylonitrile-based facilitated-transport-nanofiber mat for O2/N2 separation

“…It can be observed that most of the MMMs have inorganic fillers with the exception of a membrane composed of neat PES. 74 The said membrane showed an excellent selectivity of 10.6 with greatly compromised permeability for both O 2 and N 2 ( Table 2 ), and therefore, falls under Robeson's upper bound limit given in 2008 ( Fig. 5 ).…”